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BaZi guide

What is BaZi?

BaZi (八字) is a traditional Chinese system that describes a person through the four pillars of their birth: year, month, day, and hour.

By the Daoly team · Updated November 2026

BaZi in one paragraph

BaZi (八字), also called the Four Pillars of Destiny, is a traditional Chinese system that maps a person's birth moment onto four pairs of characters: one each for the year, month, day, and hour. Each pair has a Heavenly Stem and an Earthly Branch, and each character carries an element. Reading a chart means studying how these elements support and restrain one another around the Day Master.

BaZi compared with Western astrology

BaZiWestern astrology
BasisChinese solar calendar, stems and branchesPlanetary positions in the zodiac
Core identityDay MasterSun sign, with Moon and Ascendant
InputsBirth date, time, placeBirth date, time, place
Timing10-year Luck Pillars and annual pillarsTransits and progressions
LanguageFive Elements and Ten GodsPlanets, signs, houses, aspects

The building blocks

  • 10 Heavenly Stems: Yang and Yin versions of the five elements
  • 12 Earthly Branches: the zodiac animals, each with hidden stems
  • 60-pillar cycle: the stems and branches paired in rotation
  • Solar terms: 24 divisions of the solar year that set the Year and Month Pillars

Where to start

  1. Calculate your chart with the free BaZi calculator.
  2. Read about your Day Master.
  3. Follow the step-by-step chart guide.

BaZi guides

The ten Day Masters

Frequently asked questions

What does BaZi mean?

BaZi (八字) means “eight characters.” It refers to the eight Chinese characters formed by the stems and branches of a person's birth year, month, day, and hour.

Is BaZi the same as Chinese zodiac?

No. The Chinese zodiac uses only the animal of your birth year. BaZi uses four pillars, and your year animal is just one of the eight characters.

Do I need my exact birth time for BaZi?

An exact time gives you all four pillars. Without it you can still calculate three pillars, including your Day Master in most cases.

How do I find my Four Pillars?

Enter your birth date, time, and place in a BaZi calculator. The chart returns four pairs of characters for your year, month, day, and hour.

How accurate is BaZi?

The calendar calculation is exact once the time conventions are set, but interpretation is a matter of tradition and judgment. BaZi has no scientific validation as a way of predicting events.

Is BaZi scientifically proven?

No. BaZi is a traditional Chinese system with no scientific validation as a predictor. Many people use it as a language for reflection.

Daoly presents BaZi and the I Ching as cultural traditions and tools for self-reflection. Nothing here is a prediction or medical, legal, financial, or psychological advice.